JP2010501194A - Animal capture device - Google Patents

Abstract

The trap (1) has a housing (2) with openings (11) provided in a channel (20) such that the channel is partially freed by one of the openings. A closing part (3) is provided with a front edge for applying a fatal closing force on an animal e.g. vole. The closing part is moved from a closed position into an open position such that the closed part is automatically locked by a retaining arrangement, which is operatively connected to a release mechanism, during reaching the open position. The mechanism is activated for releasing the closing movement of the part.

Description

  The present invention relates to an animal capture device of the general form set forth in claim 1. Said type of capture device is for capturing perforated animals, especially voles, voles, and wild mice.

  Capture devices used for voles that live underground have been in common use since ancient times. Examples of similar and equivalent capture devices are described in WO 03/061375. The capture device described in the patent has a cylindrical housing and is provided with two openings on the lower side that can be installed in a burrow. Within the housing is a hollow tubular (or cylindrical) closure that is installed in the housing and slides longitudinally so that the opening is closed in the closed position. When setting up a capture device, it is necessary to place it in the burrow of the mouse so that there are no obstacles in the burrow and the voles can pass through the opening. At the lower part of the capture device, there is a trigger pin that is installed inside the housing and pivots around a trigger spindle extending in the vertical direction. The end of the trigger pin furthest from the trigger spindle is U-shaped. The farthest end of the U-shaped end holds the rocker connected to the closure in place. The rocker is pivotally connected to the loading handle of the closure. In order to set up the capture device (that is, to set it to the open position), it is necessary to first lift the clamp lever together with the rocker. Next, the rocker is pushed in the direction of the housing cover, and finally the tip of the U-shaped end of the trigger is hooked on the rocker. This holds the closure in the open position. The operation of the capture device is difficult. Furthermore, it has been found in practice that it is not desirable to use a coil spring to pull the closure.

  Therefore, the object of the present invention is to create a capture device characterized by simple operation, avoiding the inconvenience of known designs.

  In terms of design, a capture device incorporating the features of claim 1 will be satisfied. When the open position is reached, the closure moves from the closed position to the open position so as to be automatically fixed using the trigger mechanism together with the snap catch fastener. Only the closure needs to be moved to set up the capture device. The capture device is automatically locked open without the need for further action. Due to the ability to automatically lock, the capture device can be easily operated. Mainly, the closure is moved by sliding. The animal is hit from the front edge when the capture device is closed. It is desirable that this blow is a fatal level. Depending on the animal being captured, an appropriate spring configuration is assumed to provide sufficient closure force.

  In the first version, the closure is fixed open by a snap catch in the housing. By using the snap catch design, automatic fixing can be easily performed.

  The snap catch design requires one or more retaining members at the closure that are supported by the shoulder of the trigger mechanism. Using the design makes it very easy to fix the closure in the open position.

  It is also advantageous to have a trigger mechanism with a trigger portion that is mounted to pivot on the housing. Thereby, the pivot axis is shifted or perpendicular to the operating direction of the closing part. The trigger part is a unit extending along the operation direction. With this simple and reliable method, the animal swoops and triggers the catching device by picking the front end of the part. This design makes it impossible for a part of the body to come off the trigger mechanism, for example the trigger pin used in WO 03/061375. Therefore, it is virtually impossible to defeat the trigger.

  A particular advantage is a trigger mechanism that includes a trigger portion having one or more pull-in surfaces along which the fixing member can be moved during opening. Thus, the trigger part is turned by sliding the closing part to the open position.

  The trigger mechanism is composed of a trigger portion having a support member, and the upper end of the support member here functions as a support shoulder portion in the opening direction.

  It is a special advantage that the trigger part includes a conventional support element together with a support member that is configured with a spacing of 1 time rather than a spacing of 2 times. A guide groove is thus created between the support members, through which the holding element can be passed. Furthermore, there is a V-shaped pull-in along the guide groove that continues in the direction of the opening. This design allows a good connection between the holding member and the support element. The support member forms a support element with an arrow in the direction of the opening, the surface of which forms an external lead-in surface. In this way, the holding element can be moved from the outside on the arrow surface and from the inside on the guide groove.

  It is advantageous that the closing part has a handle protruding from the housing, and that the closing part is thereby moved to the open position, so that the opening operation can be easily performed by grasping the handle with the hand. In the open and closed positions, the handle protrudes from the housing at different lengths. Therefore, it is easy to confirm whether the capture device is activated or not activated. For example, a long handle protruding from the housing (when the closure is in the open position) indicates that the animal has not yet been captured. This visual management can be further enhanced through the use of handle colors.

  The closure can be made as a single plastic injection molded part. The closure is easy to make and cost effective.

  As for the preload of the spring, for example, one coil spring or a plurality of coil springs can be used. However, it may be particularly advantageous to include one or more torsion springs. As a result of its non-linear spring force distribution, torsion springs have advantages in the process of opening and closing, both in terms of operation and capture effectiveness.

  An advantage is created by the idea of installing one torsion spring on both sides of the trigger. By using this type of arrangement, only one side of the spring is avoided.

  In order to support each torsion spring, it is assumed that a spring holder is installed in the trigger portion. In this case, the pair of spring holders may or may not be separated from each other.

  The end is formed by the front end of the wall, thereby closing the opening in the closed position. Since it is generally necessary to kill the animal to be successful, a relatively short end can be selected instead, so that the opening is only partially blocked or not blocked at all .

A housing | casing is provided with the opening part of two places installed in the other side. The wall can be further expanded along the hollow cylindrical line, in which case the side openings are closed in the closed position. However, it is not clear that the closure is completely formed as a hollow cylinder.
Instead, it is better to design only the front end as a hollow cylinder for the wall and add a connection that extends along the operating line (ie, the direction of the opening). The upper end of the connecting part forms a handle. For example, the connecting portion can be a rectangular portion having a rectangular cross section. Other cross-sectional forms can also be selected.

  It is better to design the end of the closure to have a V-shaped cross section to ensure killing the animal. It is particularly advantageous if the end is relatively thick in cross section, ie if the wall thickness is large. However, it is generally not necessary to sharpen the V shape because it is undesirable to cause cuts. Animal demolition is not preferred for hygienic reasons.

  A circular floor is envisaged for the floor of the opening, and at least in the closed position, it is displaced inward with respect to the closure element so that the end of the closure overlaps at least part of the floor. Furthermore, the front end of the floor having a V-shaped cross section and facing the closure can now be determined.

At least in the lower part, the housing can be deployed as a hollow cylinder. The housing has a cylindrical cover. Next, when viewed from above, the floor portion can be shifted to the inside of the housing cover so that the end is located between the housing cover and the floor portion.
For manufacturing and cost reasons, plastic must be specified for the housing and / or closure.

  Further advantages and individual features of the invention are described in the drawings and the following description of operational examples.

Perspective view of underground habitat animal capture device design, for voles Figure of the capture device described in Fig. 1 in the open position, from different angles Capture device of FIG. 2 in the closed position The capture device of FIG. 2 with the housing cover removed. The capture device of FIG. 3 with the housing cover removed. Perspective view of trigger part of capture device and a set of torsion springs Perspective view of capture device closure Side view of the closure with slight modifications to Figure 7 FIG. 8 is a front view of the closing portion, and a cross-section (A_A portion of FIG. 8). Sectional view of the capture device in the longitudinal direction (B_B portion in FIG. 9) Front view of trigger part of FIG. Side view of the closure of FIG.

  FIG. 1 shows a symbol 1 animal capture device in the installed state. This capture device includes a housing 2 having an opening 11 and is aligned with an underground burrow 20 where the burrow passes through the opening. This type of burrow is used, for example, in voles. By design, the capture device is suitable for other animals. It can also be seen in FIG. 1 that the housing is made of two parts and consists of housing shells 22 and 22 '. The housing includes a cylindrical portion 19 that is an underground housing cover and a head portion 27 on the ground. The exact method of operation of the capture device is detailed in FIGS.

  As shown in FIG. 2, the cylindrical portion 19 of the housing has an opening 11 facing the opposite side at the bottom. The front end of the trigger portion 4 protrudes from the nest hole 20. When the animal pecks, the trigger portion 4 starts closing operation of the closing portion 3 in the “f” direction. The closing part 3 is installed in the housing and can be moved along the closing line f. The trigger part 4 which can turn is installed in a housing | casing. The turning direction is indicated by a curved arrow. In FIG. 2, it can be recognized that the handle 15 protrudes from the closing part 3.

  In the closed position, the opening is clearly blocked by the wall 17 of the closure 3. The closure 3 has a front end 10, which exerts a closing force on the animal through a closing action.

  As a result, animals are severely hit. To apply a closing force, assume a spring arrangement for the capture device (compare FIGS. 4 and 5).

  A circular floor is assumed for the floor of the opening 11. 2 and 3, it is clear that the closure floor 18 in the closed position is placed inside the edge 10 so that the end 19 of the part overlaps the floor 18. In a plan view (not shown here), the floor 18 is similarly placed inside the housing 19 so that the end 10 is located between the housing 19 and the floor 18.

  The spring arrangement is shown in FIGS. The following example operation shows a spring arrangement with a set of torsion springs 16. The spring 16 is fixed to each case by a holder 21 of the housing 2 and a holder 23 of the closing portion 3. Thus, the closing part 3 in the open position is kept in a state of protruding by the snap catch.

  The housing | casing 2 consists of two division parts, and can be divided | segmented along a longitudinal direction. A single housing shell 22 is shown in FIGS. This figure also shows a fixing hole, which is used together to connect the housing shells. A torsion spring is incorporated in the head portion 27 of the housing. FIG. 4 also shows that the front end of the floor 18 on both sides of the closure has a V-shaped cross section.

  As shown in FIG. 4, the trigger portion 4 turns around the axis S in the housing. The axis S moves clearly perpendicular to the direction of movement of the closure 3. An accelerator stub 24 is envisaged for performing a pivoting movement, which can be attached to a corresponding joint socket in the housing.

  In the closed position of the capture device 1 of FIG. 5, some design details regarding the placement of the springs for holding the closed portion in the open position can be seen. The trigger part 4 has two support elements installed on opposite sides. A support shoulder 9 can be seen at the upper end of the support element 7, to which the six holding elements 6 of the closure 3 are attached (as shown in the view of FIG. 9/10). In FIG. 4, the retaining element 6 is only partially visible because it is inserted deeply into the wall 17. The trigger portion 4 includes a pull-in surface associated with the support element 7, along which the holding element 6 moves when released.

  It can be seen from FIG. 6 that each support element consists of two support portions 8. A support shoulder 9 is provided at the upper end of the support 8. Along with the operation of the opening indicated by the arrow, the holding member is guided along the taking-in surface. When reaching the open position, the supporting shoulder functions as a stopper. In this position, the closure is secured by a snap catch.

  FIG. 6 also shows the torsion spring in the closed position. The spring end is bent so as to be approximately parallel to the swiveling surface of the trigger portion.

  The spring bent in this way fits well in the closing part 3 (as shown in FIG. 7).

  FIG. 7 shows the closed part 3 disassembled. The closure 3 has a hollow cylindrical wall 17 that forms the lower end of the member. A flat part located along the opening line is fixed to this, and this end forms a handle 15. Around the center a spring holder 23 is shown in which the bent end of the torsion spring is fitted. It is assumed that the groove 25 is located between the wall 17 and the spring holder 23, thereby forming two arms. The trigger portion is positioned in the recess 25 between the arms. This allows at least a slight turning motion. The closure 3 can be designated as a single injection molded part.

  As shown in FIGS. 8 to 10, the closing portion 3 is different from the above operation example only by the modified spring holder 23 and the handle 15 having a different shape. It can be seen from FIG. 9 that the end 10 of the closure is V-shaped. In FIG. 10, the structure of the holding member 6 can be clearly seen. The holding member is a component facing the center from the hollow cylinder of the wall, and forms the holding surface 26. This holding surface 26 serves as a stop surface for the support shoulder in the open position.

  11 and 12 show the exact features of the trigger section 4. The support members 8, 8 'form a support element 7 that is arrowed along the opening line so that the arrow faces 14 and 14' form an external guide. A single spaced support member 8, 8 'of the support element forms a guide groove in which the holding member moves.

  A thing passing through the guide groove along the direction of the opening is the V-shaped taking-in part 13. Thus, the support element 7 has outer and inner guide surfaces (12, 13, and 14) along which the holding member moves. In the open position, the retaining member (not shown here) is located on the support shoulder 9, thereby preventing the closure from returning to the closed position. When the trigger is pulled, the trigger portion 4 turns so that the holding member is released, and the closing portion is prevented from moving to the closed position by the force of the spring mechanism. The trigger part is shown in FIG. 12 as a dotted outline of the described turning position.

Claims (11)

An animal capture device for underground drilled animals, especially voles,
A housing (2) installed in a burrow (20), the burrow having one or more openings (11) at least partially free of obstructions;
Having a front end (10) that exerts a lethal closing force on the animal, and
A closure (3), which can be moved between a closed position and an open position, wherein the closure (3) is held in the open position by a spring preload by means of a snap catch mechanism;
A trigger mechanism that is actuated when struck by an animal, and wherein the closure (3) initiates a closing action;
And a closing part that is moved from the closed position to the open position so that the closing part (3) is automatically fixed by using a trigger mechanism when the open position is reached together with the snap catch design. Animal capture device.   The animal capture device according to claim 1, characterized in that the closure (3) is fixed in an open position by a snap catch of the housing (2).   The animal capture device according to claim 1 or 2, characterized in that the closure (3) comprises one or more holding members and has a snap catch arrangement (5) supported by a support shoulder of the trigger mechanism. It is what.   4. The animal capturing apparatus according to claim 3, wherein the trigger mechanism includes a turning trigger portion (3) attached to the housing with a turning axis deviated from an operation line of the closing portion. .   5. An animal capture device according to claim 3 or 4, comprising a trigger (4) having one or more guide surfaces (12, 13, 14) along which the holding element moves in both the opening and closing directions. It has the said trigger mechanism provided, It is characterized by the above-mentioned.   6. Animal trapping device according to claims 1-5, wherein the closure (3) comprises a handle (15) protruding from the housing (2) and helping to position the closure (3) in an open position. It is characterized by having.   The animal capture device according to any one of claims 1 to 6, characterized in that it has a single injection-molded part for the closure (3).   12. The animal capture device according to claim 1, further comprising one or more torsion springs (16) for applying a spring preload.   9. Animal trapping device according to any one of claims 1 to 8, characterized in that it has the closure (3) with an end (10) having a V-shaped cross section.   10. Animal capture device according to any one of the preceding claims, wherein the end (19) is located at least partly on the floor (18), at least in the closed position, inside the end (10) of the closure (3). ) And a circular floor portion (18) below the opening (11).   The animal capture device according to any one of claims 1 to 10, characterized in that it has the housing (2) and / or the closure (3) made of plastic.

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